What S The Black Diamond On A Tape Measure For

The black diamonds are.

The numbers that were mentioned above also come into play here. That fractional measurement is based on supporting an 8 foot plywood panel with five evenly spaced trusses. So putting a diamond at 19 2 to allow quick layout. 96 inches divided by five gives 19 2 inches so five trusses per sheet.

The black diamonds give you the assistance that you need with your floor trusses. They start at 19 2 inches which was originally used in metric layouts. The significance is not lost on us. The small diamonds are typically seen at the 19 2 inch mark on the tape measure.

The black diamonds as they re commonly called sometimes shown as black circles instead are actually stud or joist marks. My understanding is that the black diamond at 19 2 is mainly because although you would place pine joists at 12 of 16 for floors you are permitted by code to place p lam manufactured laminate joists farther apart and still be structurally equal to pine joists at 16 o c. The black diamonds on the top scale of a tape measure are for truss layouts for eight foot sheet goods. It stands to reason those who make money for building will need tape measures that are a little more in depth than those of us who just get them out to check our height.

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Image by josé manuel de laá from pixabay. Whilst not featuring on all tapes stud marks frequently appear at 16. Much as the 16 inch mark stands out for contractors looking to fasten drywall to the studs the black diamond represents the 19 2 inch spacing traditionally assigned to roof trusses.